Eclipse Ide Size

  1. Eclipse Ide Font Size
  2. Eclipse Ide Heap Size
  3. Eclipse Ide Download

Eclipse online is a web extension that provides an integrated development environment (IDE) for Java and other programming languages like C, C, PHP, and Ruby. It is a Java IDE by adding Java development components (JDT) and it is also a C/C IDE because it adds C/C development components (CDT). JEdit is a Java Integrated development environment. It is one of the best IDE for Java programming that offers word wrap (move the mouse cursor to the next line without pressing enter) feature. This tool supports Unicode and UTF8. Features: This lightweight Java IDE enables you to download/ save Java plugins using the plugin manager in your.

About a month ago, I blogged about my love/hate relationship with Eclipse. I was asked by a few people to share my tips on how I was able to speed it up so here we go… As a side note, this article is not about comparing IDEs, please refrain from displaying your hate for the IDE or your preference for another… This post is just about optimizations that help Eclipse run faster for those who use it. I’ve described each tip for Windows, Linux and MacOS users. Once you have gone through all the optimization tips, Eclipse should start within 10 seconds and run much smoother than before.

[edit]: most of those tips will speed up your Eclipse experience, not just the startup time. Classes will open faster, jumping from one definition to another will be faster. Viewing method javadocs will be faster… Unfortunately, none of that can be timed precisely so there is no specific benchmark about the actual speed gains for each tip.

Note: I assume that you already have an SSD and at least 8Gb of RAM. If not, look no further for performance boosts…

Tip 1 : Always run the latest JDK and Eclipse.

More often than not, every new JDK and Eclipse version includes fixes and optimizations from previous versions. Make sure that you are using the 64 bits version of Eclipse and of the Oracle JDK. For any web development, you will want to use Eclipse for Java EE and not Eclipse for Java.

Oracle JDK :
Eclipse :

Place Eclipse and your code on your SSD.

Eclipse Ide Font Size

Eclipse Ide Size

Time to launch Eclipse.

Tip 2 : Tune Eclipse Preferences

  • General > Startup and Shutdown : remove all plugins activated on startup
  • General > Editors > Text Editors > Spelling : Disable spell checking
  • General > Validation > Suspend all
  • Window > Customize Perspective > Remove stuff you don’t use or want (shortcut keys are your friends), same for Menu Visibility (how many times have you printed a source file…)
  • Install/Update > Automatic Updates > Uncheck “Automatically find new updates”
  • General > Appearance > Uncheck Enable Animations
  • Stay with the default theme. Unfortunately, anything else makes it really laggy and slow.

I personally turn off autosuggestions so that they don’t slow down my typing. Instead, I manually trigger the auto suggestions using Ctrl+Space when needed. This is done through:

  • Java > Editor > Content Assist > disable Enable Auto Activation. Advanced > Remove all unwanted kinds

Tip 3 : Keep your JDK on a RAM Disk

A RAM disk is a virtual disk or hard drive that is stored into the computer’s memory. It boosts the I/O performance on anything that is on it. Creating a RAM disk uses your RAM even though it just appears as a drive on the computer. Because the memory used will be reserved for the disk and become unavailable for other programs, we will only be putting the JDK on there. 300MB will be enough.

Warning: Don’t put anything permanent on the RAM Disk we will create as it will be erased/recreated at each reboot.

Step by Step for Linux users:

Everything is described here already

Step by Step for Mac Users:

The RAM Disk is created with the diskutil tool:

1. Create a new batch file, for example: ~/tools/batch/
Replace x, y, and z with the JDK version you have installed on disk:

(Note that diskutil expects the number of 512 bytes sectors to be allocated: for 300MB, 300 * 1024 ^ 2 / 512 = 614400)

2. Save your file and make it executable:

Now run to create the Ram Disk:

You should now see in Finder the new device called JDKRAMDISK containing your JDK. You can remove the RAM Disk and free its memory by clicking on the Eject button:

Note that if you follow this tip, you will always need to have the RAM Disk in order to launch Eclipse (otherwise you will see the error “A Java Runtime … must be available in order to run Eclipse”). You can configure your system to run the script automatically upon startup using Automator or using a launchtl daemon.

Step by Step for Windows Users:

1. Download and install the utility called imdisk

2. Create a new batch file, for example: C:/tools/batch/ramdisk.bat
Replace x, y, and z with the JDK version you have installed on disk:

By running ramdisk.bat, you will have created a new disk N: labeled “JDK RAMDISK” that will contain your JDK.


3. Make sure the file is run as an Administrator. Right click on the file, go into Properties and check Run as Administrator.

Note that if you follow this tip, you will always need to have the RAM Disk in order to launch Eclipse (otherwise you will see the error “A Java Runtime … must be available in order to run Eclipse”). You can configure your system to run the ramdisk.bat script automatically by placing the script into your Startup folder.

In order for Tip 3 to work, you will need to add the -vm setting in eclipse.ini (see next section)

Tip 4 : Tweak your eclipse.ini

This is one of the most confusing areas of Eclipse optimizations. There are thousands of online articles preaching different configurations… I’ll just describe the way I tweaked my options and add more to the existing confusion 🙂

Location your eclipse.ini file:
Windows/Linux: located in $ECLIPSE_HOME
MacOS: located in $ECLIPSE_HOME/

Understanding what’s going on…

Eclipse.ini contains 2 types of properties: properties relative to the Eclipse application and properties relative to the JVM. Those options are different depending upon your version of JDK or Eclipse. Here is the most up-to-date list I was able to find online.

To understand those options require just a bit of vocabulary on Oracle’s JVM. Basically, the JVM memory is divided into multiple memory pools where objects reside with time:

Eclipse Ide Size
  • The Eden Space (heap) provides the memory for most initial objects. The Garbage Collector passes often through this space containing objects of “young generation”. It removes any objects that hasn’t been used for a while.
  • The Survivor Space (heap) contains the objects that have not been destroyed after 2-3 passes of the GC in the Eden Space. They are still part of the “young generation” but have moved to a much safer place where they have less chances of being destroyed: the Garbage Collector passes much less often there (it assumes from past experience that objects are used more frequently).
  • The Tenured Space (heap) contains the objects that have been in the Survivor Space for a while.
  • The Permanent Generation (non-heap) contains all the metadata about of the JVM, such as the class properties, methods, enums, etc. Because that data can be shared accross multiple JVMs, the permanent generation has read-only and read-write areas.
  • The Code Cache (non-heap) provides the memory used for compiling and storing code.

In case you are interested, Oracle wrote a great article about garbage collection tuning, detailing all those spaces and roles

The sizes for all those memory pools can be tweaked in eclipse.ini. I have 16Gb of RAM, but these settings will work fine with 8Gb of RAM.

use the JDK stored on the RAM Disk (use the version according to what you did in Step 3):

disable bytecode verification (risky)

This basically skips the verification of class files (described in, meaning that the JVM won’t be able to detect the authenticity of the class files you are using. This poses a security threat if the compiled files have been altered. Use at your own risk. (I use that option for hobby projects but not at work)

turn on performance compiler optimizations

increase permanent generation space (where new objects are allocated)

increase min and max heap sizes (which includes young and tenured generations)

increase heap size for the young generation

set stack size for each thread

Eclipse Ide Heap Size

tweak garbage collection

And finally, here are some other options that you may see online… Personally I didn’t notice much of a boost by using any of them so I’m just stating them for info. You can look at the doc reference to know what they correspond to and then play with them:

Finally, remove all the duplicates as well as launcher.XXMaxPermSize which is useless with the option XX:MaxPermSize.

Tip 5: Get your anti-virus outta here

If you have an anti-virus, make sure that it doesn’t interfere with your code folders. Add the JDK folder, the Eclipse folder, your .m2/jar repositories, and your code folders to the antivirus whitelist.

Tip 6: Keep SVN and GIT out of Eclipse

This is really a matter of personal preference. Some will like the Eclipse integration with the collaborative team tools. Personnally I find them slow, I’d rather have Eclipse concentrate on the dev task than try to do too many things at once… I’m also a sucker for the SVN/GIT CLIs… Anyways, I removed the integration with Eclipse and found it much more responsive.

Tip 7: Use your keyboard

One of the perks of Eclipse is the trumendous amount of keyboard shortcuts it offers. You can remap them if you are used to other schemes. I usually remap my debugging keys for ex. so that they match the ones in VIsual Studio & Chrome Dev Env. Take some time to learn them. The less your hands leave your keyboard, the faster your Eclipse experience will be!

I won’t go into details about which shortcuts to know but you can easily find that information online. Just thinking about it, a few must-know shortcuts come to mind:

This pretty much wraps it up! Without comparing Eclipse to any other tool out there, I find that it can be a very powerful and fast tool to write java code with.


If you have any other tips, I’d love to hear about them!

Package Description

An IDE for C/C++ developers with Mylyn integration.

This package includes:

  • C/C++ Development Tools
  • Eclipse Git Team Provider
  • Mylyn Task List
  • Remote System Explorer
  • org.eclipse.cvs
  • org.eclipse.equinox.p2.user.ui
  • org.eclipse.platform
  • org.eclipse.rcp
  • org.eclipse.cdt
  • org.eclipse.cdt.debug.ui.memory
  • org.eclipse.cdt.msw
  • org.eclipse.cdt.launch.remote
  • org.eclipse.cdt.autotools
  • org.eclipse.cdt.mylyn
  • org.eclipse.mylyn_feature
  • org.eclipse.mylyn.context_feature
  • org.eclipse.mylyn.team_feature
  • org.eclipse.mylyn.ide_feature
  • org.eclipse.mylyn.bugzilla_feature
  • org.eclipse.mylyn.wikitext_feature
  • org.eclipse.rse
  • org.eclipse.egit
  • org.eclipse.egit.import
  • org.eclipse.epp.package.common.feature

Maintained by: Eclipse Packaging Project Space bag cube storage.

Windows 32-bitx86_64
macOS 32-bit Linux 32-bitx86_64

Windows 32-bit: MD5 - SHA1
Windows 64-bit: MD5 - SHA1
Mac OS X (Cocoa) 32-bit: MD5 - SHA1
Mac OS X (Cocoa) 64-bit: MD5 - SHA1
Linux 32-bit: MD5 - SHA1
Linux 64-bit: MD5 - SHA1


Bug IDTitleStatus
496240Opening 'Help Contents' prints some warning messages about log4jNEW
496363Cursor down at bottom of edit box only scrolls last two lines of text.NEW
490235Where can I add the lib files of C like include stdio.h in my project?NEW
480141C++ package should include the XML editorNEW
451930Create a debian package for EPP CPPNEW
455050Use Tycho 0.23.0-SNAPSHOT to leverage ability to express native dependenciesNEW
506244Include a runtime (OpenJDK 11+) in some EPPsNEW
512302Crash on Customize PerspectiveNEW
534619[Photon] [cpp] Include Tip of the DayNEW
542755CPP and Parallel packages require Java 11 support to buildNEW
534592Error create interactive consoleNEW
522015Response of: Value must be an existing directory, when using ${eclipse_home}NEW
521784Bug 446072NEW
238857Deadlock opening dialogs on EPP C++NEW
449530This app can't run on your pc To find a version for your PC, please check with the software providerNEW
316452Run and Debug time termination (eclipse-cpp-helios-RC3-win32-x86_64)NEW
319647MCS51 family SDCC not compatible with build id 20100218-1602?NEW
316437Error and termination while Run or Debug is executed (eclipse-cpp-helios-RC3-win32-x86_64)NEW
281052'Binary not found' when launching application after switching perspectiveNEW
250367Crashed after updating processNEW
321677CDT Helios impossible to install new software via GUINEW
336456Showing the actual (int) value of an enum variable in CDT editor on hoverNEW
442975Can't create a new ProjectNEW
444682The EPP C/C++ Package 'Samples' are empty on the Welcome pageNEW
444683The EPP C/C++ Package docs mix 'user docs' with 'developer docs'NEW
422424Bug 'Restore Defaults' on CVS RepositoriesNEW
375866The CPP package content description (feature list) is outdated since JunoNEW
338462Cannot complete the install because of a conflicting dependency. Software being installed: Eclipse Java Development Tools 3.6.2NEW
535781[EPP Photon RC3] java.lang.NoClassDefFoundError: org/eclipse/linuxtools/docker/core/IDockerConnectionASSIGNED

Bugs listed in italics indicate the bug has been moved to another project.

Bug IDTitleStatus
441906java 1.7 not foundRESOLVED
443474Crashes in 64 bit, advises need for 1.7 in 32 bitRESOLVED
450389cant install the download I made on my PcRESOLVED
404686Download and Detail Checksums Don't MatchRESOLVED
396874Wrong Download!RESOLVED
230318Add Mylyn support to C/C++ IDERESOLVED
382264The 'Eclipse IDE for C/C++ Developers' builds are missing from the developer downloads pageRESOLVED
460821MARS: No ability to add JavaRESOLVED
478463Add multi-core visualizer and hardware debugging featuresRESOLVED
516675Add Terminal to CPP PackageRESOLVED
520285lots of errorsRESOLVED
549433Launchbar cannot be updated with Check for UpdatesRESOLVED
493861Never ever run in Dell InspironRESOLVED
490552Some features are not at the top-level in the new layoutRESOLVED
480536Eclipse IDE for C++ fails to launch. Cannot find shared libraries.RESOLVED
490046[Welcome] Adopt Solstice theme for CPP packageRESOLVED
340070Add features to CPP packageRESOLVED
347860Add egit to cpp packageRESOLVED
302165Move CDT version up to 7.0 for HeliosRESOLVED
324865GDB / MI not available in eclipse HeliosRESOLVED
251315Eclipse C++ Error /mingw/lib/libmingw32.a(main.o):main.c: undefined reference to `[email protected]'RESOLVED
261138Installation of XML editor fails on eclipse linux 64 Bit c++ editionRESOLVED
250368the Format is wrongRESOLVED
238201sometimes can't start package on Linux 32RESOLVED
236699SWT missing from CDT RC3 package for Linux64RESOLVED
275213New feature for C/C++ PackageRESOLVED
286944Eclipse IDE for C/C++ Developers - Mac OSX - does not include symbolic link to executableRESOLVED
278310Can't update with P2 (but then again, what's new ..)RESOLVED
466568eclipse-cpp-luna-SR2-linux-gtk-x86_64.tar.gz appears to be incompleteCLOSED
503020New eclipse not coming up - Giving java errorCLOSED
535309EPP builds failingCLOSED
521395Ctrl+Click Indexing doesn't work in C++ modulesCLOSED
520286lots of errorsCLOSED
304607New feature for CPP packageCLOSED
346223Add CDT update site to discoveryCLOSED
333068Link to CDT New and Noteworthy is outdatedCLOSED
345190Cannot configure CDT Indexer for Microsoft SDK 7CLOSED
343981Add autotools featureCLOSED
334840Windows->Preferences menu item missingCLOSED
379734RFE: optionally import Linux Tools features via p2.inf rather than include themCLOSED
328546'File Seach' feature - does not work the first time you run itCLOSED
316038new CDT logo for CPP packageCLOSED
313497Eclipse Helios M7 for Linux x64 crashes on startup on openSUSE 11.2/x86_64CLOSED
438545Team preferences missingCLOSED
405222I cant open up Eclipse at allCLOSED
324522eclipse hang by debugging inside linked librarysCLOSED
336606Eclipse Ganymede IDE hangs in Ubuntu 10.04CLOSED

Bugs listed in italics indicate the bug has been moved to another project.

File a Bug on this Package

New and Noteworthy

Eclipse CDT
Eclipse Linux Tools
Eclipse Platform
Eclipse Mylyn
Eclipse EGit

Eclipse Ide Download

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